4 replies to this topic

[rossati]

Hello

My be I lack of information, but If I create a Graphic control via GUICtrlCreateGraphic the subsequent instructions gdi e.g _GDIPlus_GraphicsDrawRect are related to control and not on the windows indicated in _GDIPlus_GraphicsCreateFromHWND
Incidentally if this is correct is better for me.

thank

John Rossati

[martin]

A graphic control created with GuiCtrlCreateGraphic is not intended to be usd with the _GDIPlus_* functions.. To draw on the graphic control you need to look up GuiCtrlSetGraphic.

[rossati]

Hello Martin

yes this is true, but I checked the instructions _GDIPlus_GraphicsDrawRect draw a rectangle in the graphic control, instead of in the window.
Can be an Autoit error?

John Rossati

[UEZ]

You can also draw with GDI+ into a picture control.

Example:

AutoIt        expandcollapse  popup

#include <gdiplus.au3>
#include <staticconstants.au3>

_GDIPlus_Startup()
$hGUI = GUICreate("Test", 320, 256)
GUISetBkColor(0x000000)
$iW = 120
$iH = 224
$idPic = GUICtrlCreatePic("", 80, 16, $iW, $iH, $SS_SUNKEN)
GUICtrlSetBkColor($idPic, 0xF0F0F0)
$hPic = GUICtrlGetHandle($idPic)
GUISetState()
$hGfx = _GDIPlus_GraphicsCreateFromHWND($hPic)
_GDIPlus_GraphicsClear($hGfx, 0xFFF0F0F0)
_GDIPlus_GraphicsSetSmoothingMode($hGfx, 2)
$hPen = _GDIPlus_PenCreate(0xFFFF0000)
_GDIPlus_GraphicsDrawLine($hGfx, 0, 0, $iW, $iH, $hPen)

Do
Until GUIGetMsg() = -3

_GDIPlus_PenDispose($hPen)
_GDIPlus_GraphicsDispose($hGfx)
_GDIPlus_Shutdown()

Exit

GDI+ can only draw to a graphics handle or directly to a bitmap but not into a window handle.

Br,
UEZ

Edited by UEZ, 20 February 2012 - 08:12 PM.

[rossati]

thank

This is a respons that I need, my errors was of thinking that the handle of _GDIPlus_GraphicsCreateFromHWND was the handle of a window (as saith in the help and in the example).

Jonh Rossati