Draw Rectangle And Line On PictureBox On Button Clicks

May 29, 2012

I have a form in which I draw a rectangle and a line depending on the button click. I basically want a dynamic line/ rectangle that moves when the mouse is clicked on another point on the picturebox. I found some code online for a rectangle, and I'm trying to extend it to draw a line too, but i'm having some issues. The line is not displayed when the mouse is lifted(mouse up event).

Here's my code:
Public Class Form1
Dim selection As Rectangle = Nothing
Dim m_Drawing As Boolean = False
Dim m_Start As Point
Dim square_click As Boolean = False
[Code] ......

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3 objGraphics.Clear(SystemColors.Control)

[code]....

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[code]....

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[code]....

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[Code]...

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[Code]...

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[code]....

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Private Declare Auto Function BitBlt Lib "gdi32.dll" ( _
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[code]......

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[Code]...

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Try
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[Code] .....

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