My application allows users to specify a logo. When they choose the logo I need to scale the image to accommodate my application's use. Everything works great except for transparent GIFs, the transparency is not preserved and it is converted to BLACK. Here is my
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How can a preserve an image's transparency if applicable?
I've making a program that must crop 20 squares out of a larger image that is in a picturebox. Now I've created a Draggable rectangle control and set it's Background to transparent. This is working (kindof).
Now I have set my control to doublebuffered = true and it Removes tha annoying flicker.My problem is that doublebuffering creates a new problem. My control's parent is a picturebox with a large picture inside.When I move my control over the picture to select the area to be cropped it updates slowly I.E The control Is in a new area but it still displays the old area and then updates which is annoying.If you want to see for yourself create a new project with a picturebox with a Image inside with my Control as a child of the picturebox.
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I have thought of possible solutions but they might well be much slower.#1 Copy the part of the picturebox that is under the control and paste it on my control.#2 Somehow eliminate the backcolor property thus eliminating the need to paint something over the control and only paint needed parts .
One of my programs uses transparency so that the form is the shape of the background image (.png). My problem is that everything works and looks fine on the computer I'm developing on (Win7) but when I run the program on my other computer (XP), instead of the transparency I get the background color (which is the same as the transparency color). Does anyone have any experience this problem?
View 5 RepliesI am sort of new to MVC so pardon my ignorance. I am using IoC ( StructureMap ) and I have a need to pass in an instance of what I consider to be a set of Controls to each view, so I have created ViewModels in order to accomodate this. The view model is populated with an instance of the Controls and the View is then rendered. When a user performs a POST, the Controls are not being passed back to the Action.
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I have a form, which has the background color set to the transparency key color. On the form there is a picturebox with transparent backcolor and a picture that is semi transparent.Unfortunately the transparency doesn�t work. The form shows with a background, but not the background color I chose, but the gray control color. Nothing is transparent.The EXACT same thing works with another form.
View 4 RepliesIs there a way that I can make the screen go black slowly, then brigther? To make sure you get me, Watch this MapleStory video and turn to 0:10. [URL]You see it goes black.. and then brigther?How do I do that?
View 6 RepliesWhen the dialog pops up, the screen dims down almost as if they overlapped the screen with a transparent black layer of some sort. This is easily accomplish able by creating a black form and having its opacity set to half and starting it maximized-which I'm already doing. The problem with this though is I need to do this within a form, so using a panel or anything is out of the questions since transparency really grabs the background image and not the actual controls underneath. Plus I feel if adding a form to another forms controls depletes it's ability to use it's opacity property.The form I need this in is my cash register. It is full screen but if my menu auto hides it still resizes. It has two parts, the order(panel to the left) and the payments(panel to the right). As you could imagine I want the payments portion blacked out until the order is capable of accepting payments(the payment due is greater than 0). Or I'm thinking it fallows the mouse, you mouse over the payments and the orders panel blacks out, and vice verse.
Plus I have tried googling this but no one seems to have the answer on other forums.. Everyone gets confused and the thread ends short with no solution. Apparently though experts-exchange has the answer, but wants me to pay... so no. Wish their site would stop showing up in my google results.But did have an idea of what I could do. My best guess was I could take a snap shot of just the panel I want to black out. Set it as the background image for that panel THEN use my overlay panel(back color sent to black) overlapping the appropriate section with it's transparency set to half.. But still I'm not sure how to take a snap shot of just a particular.control..
When upgrading my old app, how do I preserved those old Application Setting that had been set by previous app, so that the new app can use back the old app setting?
View 1 RepliesI decided to have a play around with the Windows API Code Pack and so far it has had some very interesting things. Something which I like in particular is AeroGlass. I have created a project to mess around with it to see how it works etc. and I am having some difficulties with the tranparency. If I put a textbox on the form for example, it displays fine. The text however is barely readable unless the form is over a dark background. The solution seemed obvious. Change the transparency key. However, there wasn't one set. Adding one stops the glass effect from working.
View 2 RepliesI'm automating Excel => Word table and then vice-versa. However, some of the text within a cell is red and needs to be kept red in the word table and also going the other direction, if some of the text is red then it need to be red in the worksheet cell. However it always comes out black after the automation. I see in WORD a search and replace for FORMAT, such that I can replace a word that is red with one that is blue. However, I do not see that capability within an Excel cell, I can change the entire cell, but not part of the cell text...
View 1 RepliesI've been testing an application I'm working on in Windows 7, Vista and XP. If I'm using XP then I get a couple of solid black blocks after the items listed in the ListBox. They are absent when running the same application in Vista or 7. I have the enable application framework checkbox unchecked. I haven't tried changing that to see if it makes a difference.
View 7 RepliesThis is a very basic question, I have a parent form and a child form and both window state are set to maximize, would it be possible to remove the toolbar at the top? I have tried most thing like setting the form border style to none on the child form but still I get two tool bars. I would like to remove the tool bar in the black square
View 5 Repliesi'm getting some errors after i converted it to C# well here it is
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And Converted in C# gives me allot of errors i can't even post it :/ convertor used [url] i need this class for my security program
So iv tried converting this code into vb.net from vb6, but whenever I run this application I get the following error "Attempted to read or write protected memory. This is often an indication that other memory is corrupt." on the underlined line.
Public Class Form1
Private Const SB_VERT = 1
Private Const WM_VSCROLL = &H115
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I converted one of my projects from Visual Basic 6.0 to Visual Basic.NET and noticed stuff such as:
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'UPGRADE_WARNING: Structure PROCESS_INFORMATION may require marshalling attributes to be passed as an argument in this Declare statement. Click for more: 'ms-help://MS.VSCC.v90/dv_commoner/local/redirect.htm?keyword="C429C3A5-5D47-4CD9-8F51-74A1616405DC"'
'UPGRADE_WARNING: Structure STARTUPINFO may require marshalling attributes to be passed as an argument in this Declare statement. Click for more: 'ms-help://MS.VSCC.v90/dv_commoner/local/redirect.htm?keyword="C429C3A5-5D47-4CD9-8F51-74A1616405DC"'
Clicking on the link it talking about Imports System.Runtime.InteropServices. Which, I am guessing means the project a mixture of both .NET and .COM. How would I rewrite to be totally .Net compatible instead of relying on .COM?Also where would I put code in VB.NET if it was in the Form_Initialize() sub in VB6.0?
I am not able to use Format function in a converted VB2008 project in VS 2010.
MSDN Documentation about Format function in not available for VS 2010.
Has that function been deprecated? If so, what is the alternative?
I know the propertys transparency key and opacity. It isnt what I am looking for. I need to have my form to have the same Glass Effect the as win7 does while runing under win7 plataform. Like, if i have glass effect in the top I should have it in the background.
View 14 RepliesI'm trying to code a program but this error repeatedly shows up and I can't for the life of me figure it out EValue of type 'String' cannot be converted to 'System.Windows.Forms.TextBox'. It appears in relation to this code
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When i run my code, the picture box has a background colour, even though I have set the background colour to transparent in the properties window.
View 1 Replieshow can i control swf background transparency in vb.net either with flash.ocx or if there is any other way.so that if i have a swf animation block with red in background and some text written with yellow. now how can i remove that red background in vb.net.actually i want to make a system so that i can choose any color as transparency key for swf like in tv channels logos.
View 2 Replieshow you can get image transparency to come through in Visual Basic? Because if you try to put an image with some transparent sections on it on a form, the transparency turns into the form background colour (Though you could change the background image to whatever you want displayed under the image, but that's not the point) and basically I can't find any way to do irregular transparencies.
Alright, that's not very simple. I'll try to give an example:
You have an animated GIF of...say...fireworks. And it has a transparent background. Now say you have a few labels with text in them. When you draw the picturebox over the labels, the text in the labels is covered by the background of the fireworks, even though it's transparent. You can't see the labels. You want to see the fireworks exploding over the text
I can't see any way of getting around this, other than doing it in another program and putting the text and fireworks into one PictureBox. but it would be so convenient if it could work in Visual Basic, because you can control the text the in the labels and keep the animated "fireworks" exploding at the same time without using multiple animated images.
Is it possible to have transparency on a form but not on a button on the form?I know transparency can be controlled for the form in properties (VB 2005), but how can we isolate the button from being affected?
View 2 RepliesRight now I currently have an array of pictureboxes, and over them I want another large picturebox that has a sort of transparent fog effect. I created a png with this and made sure to save the alpha transparency, however when the picturebox shows up, you are not able to see underneath it. Is there anyway to fix this without using the GDI instead of pictureboxes? Because of the way the program is set up, I think GDI would be too slow for my purposes.
View 1 RepliesThe 1st problem: I set the transparency key to a color and then set the forms background color to that color, and then set the background image to an image with rounded edges to give my form rounded edged. But the corners look VERY jagged.
The 2nd problem: Is there a way to make a form appear in the lower right corner above the task bar? Kind of like Avasts virus database definition update window.
Ive been on the same thing for the past seven hours now. Im trying to ether get the MDI child form title-bar-less in maximized mode, or now, get the transparency working to where the MDI child has transparency. ) This is for a home automation system im working on. major alpha stages. Hardware control works ;) but this stupid GUI is kicking my butt. So three options i have. In maximize mode on the MDI child remove the title bar, or remove the parents scroll bar so i can make the MDI child the size of the parents MDI window, or make the MDI child transparency work. Im posting a screen shot to show you what im talking about.
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The member of this comunity, Keymaf, help-me to do a DLL with PNG files and with any other type of file. But now, there is another problem. The transparency of PNG are not enabled when loaded in my project.
View 4 RepliesWhile I understand there are properties of MailItem that would allow one to programmatically create a formatted email, I would prefer the ability to copy the body of an email that is already formatted to my liking (bolding, italicizing, embedded pictures/tables, set margins, etc.) copy and paste it to a newly composed email such that this formatting is preserved.
View 4 RepliesThe codes in the .cs files are all in black. For example the usual blue text keywords appear in black. Could this be to do with the intellisense not working either?
View 1 RepliesI'm currently making a huge project. So huge it is split into four separate applications. I want the form to fade to black once the user logs on and only fade up when the new program has fully loaded. I've tried various methods, such as having the second program write to a file on the C: drive, then have the first program wait until that file exists to fade out.Is there a more efficient way? My method isn't working... the form will fade to black, but you get a glimpse of the desktop just before the new program launches (both are full screen apps btw)
View 1 RepliesI have a 8 bit Gif, that is transparent, with controls sitting on top of it, all in a custom control. This part works fine. However, This control is a menu ring (appears around another control with a few options). The transparent part is over a Picbox, that is in a panel. The transparent part of the image seems to skip the picbox and go right through to the panel. I set the panel to a back color of RED. The custom control when its placed instead of showing the image in the pic box that it is on top of, it shows the RED panel I have made sure all my Z orders are right.
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