缩放矩阵
#Include <GDIPlus.au3>
_GDIPlus_MatrixScale($hMatrix, $fScaleX, $fScaleY[, $bOrder = False])
| $hMatrix | 返回矩阵对象句柄 |
| $fScaleX | X 轴缩放比例 |
| $fScaleY | Y 轴缩放比例 |
| $bOrder | [可选参数] 指定缩放方向: True - 缩放矩阵在左边 False - 缩放矩阵在右边 |
| 成功: | 返回 True |
| 失败: | 返回 False |
在MSDN中搜索
#include <GUIConstants.au3>
#include <ScreenCapture.au3>
#include <WinAPI.au3>
; 创建 GUI
Local $hWnd = GUICreate("GDI+ Example", 500, 500)
GUISetState()
; 初始化 GDI+
_GDIPlus_Startup()
Local $hGraphics = _GDIPlus_GraphicsCreateFromHWND($hWnd)
_GDIPlus_GraphicsClear($hGraphics)
; 抓取屏幕左下角截图
Local $hScreenCap_hBitmap = _ScreenCapture_Capture("", 0, @DesktopHeight - 500, 500, @DesktopHeight)
Local $hScreenCap_Bitmap = _GDIPlus_BitmapCreateFromHBITMAP($hScreenCap_hBitmap)
Local $hMatrix = _GDIPlus_MatrixCreate()
; 放大矩阵 2 倍 (所有都将变成 2 倍大小)
_GDIPlus_MatrixScale($hMatrix, 2.0, 2.0)
_GDIPlus_GraphicsSetTransform($hGraphics, $hMatrix)
_GDIPlus_GraphicsDrawImageRect($hGraphics, $hScreenCap_Bitmap, 0, 0, 500, 500)
Do
Until GUIGetMsg() = $GUI_EVENT_CLOSE
; 清理资源
_WinAPI_DeleteObject($hScreenCap_hBitmap)
_GDIPlus_BitmapDispose($hScreenCap_Bitmap)
_GDIPlus_MatrixDispose($hMatrix)
_GDIPlus_GraphicsDispose($hGraphics)
_GDIPlus_Shutdown()