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jWalker

GDI+ Just rotate something?!

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Hey,

i am working on sth like an engine - like making the creation of games etc in GDI+ eaysier...

Now i just want to let objects be able to rotate.

I know that it can be done with these Matrix-things...

I have this..

Func _DrawRectangle( $cWindow, $iX, $iY, $iWidth, $iHeight, $sColor = "Black" )
If IsString( $sColor ) Then $sColor = _StringToColor( $sColor )
$cBrush = _GDIPlus_BrushCreateSolid( )
_GDIPlus_BrushSetSolidColor( $cBrush, $sColor )
$hMatrix = _GDIPlus_MatrixCreate( )
_GDIPlus_MatrixRotate( $hMatrix, 30 )
_GDIPlus_GraphicsFillRect( $hMatrix, $iX, $iY, $iWidth, $iHeight, $cBrush )
EndFunc

Can i now just put the matrix into my Window? if then how?

I have seen some examples that made an image of the part that shall be rotated.

But if a rectangle and a circle would overlap, wouldnt the rectangle part of the circle's picture get a part of the rectangle object?

:)

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You have created on each object its own graphic buffer which can be rotated seperately. Afterwards copy the objects to the main screen.

Have a look to

Br,

UEZ


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