Selects a region as the current clipping region for the specified device context
#include <WinAPIGdi.au3>
_WinAPI_SelectClipRgn ( $hDC, $hRgn )
| $hDC | Handle to the device context. |
| $hRgn | Handle to the region to be selected. To remove a device-context's clipping region, set this parameter to 0. |
| Success: | The value that specifies the new clipping region's complexity; it can be one of the following values. $COMPLEXREGION $NULLREGION $SIMPLEREGION |
| Failure: | 0. |
Only a copy of the selected region is used. The region itself can be selected for any number of other device
contexts or it can be deleted.
Suche nach SelectClipRgn in der MSDN Bibliothek.
#include <GUIConstantsEx.au3>
#include <SendMessage.au3>
#include <StaticConstants.au3>
#include <WinAPIGdi.au3>
#include <WinAPIGdiDC.au3>
#include <WinAPIHObj.au3>
#include <WinAPIMisc.au3>
#include <WinAPISysWin.au3>
#include <WindowsConstants.au3>
; Create GUI
Local $hForm = GUICreate('Test ' & StringReplace(@ScriptName, '.au3', '()'), 281, 281)
Local $idPic = GUICtrlCreatePic('', 0, 0, 281, 281)
Local $hPic = GUICtrlGetHandle($idPic)
; Create bitmap
Local $hDC = _WinAPI_GetDC($hPic)
Local $hMemDC = _WinAPI_CreateCompatibleDC($hDC)
Local $hBitmap = _WinAPI_CreateCompatibleBitmapEx($hDC, 281, 281, _WinAPI_SwitchColor(_WinAPI_GetSysColor($COLOR_3DFACE)))
Local $hMemSv = _WinAPI_SelectObject($hMemDC, $hBitmap)
Local $hRgn = _WinAPI_CreateEllipticRgn(_WinAPI_CreateRectEx(40, 40, 201, 201))
_WinAPI_SelectClipRgn($hMemDC, $hRgn)
Local $aVertex[3][3] = [[140, -50, 0xFFFF00], [-50, 244, 0x00F0FF], [331, 244, 0xFF00FF]]
_WinAPI_GradientFill($hMemDC, $aVertex)
_WinAPI_DeleteObject($hRgn)
_WinAPI_ReleaseDC($hPic, $hDC)
_WinAPI_SelectObject($hMemDC, $hMemSv)
_WinAPI_DeleteDC($hMemDC)
; Set bitmap to control
_SendMessage($hPic, $STM_SETIMAGE, 0, $hBitmap)
Local $hObj = _SendMessage($hPic, $STM_GETIMAGE)
If $hObj <> $hBitmap Then
_WinAPI_DeleteObject($hBitmap)
EndIf
GUISetState(@SW_SHOW)
Do
Until GUIGetMsg() = $GUI_EVENT_CLOSE