GdipDrawImageRect
VB聲明：
Declare Function GdipDrawImageRect(Graphics As Long, Image As Long, X As Single, Y As Single, Width As Single, Height As Single) As GpStatus
函式說明：向Graphics對象輸出Image
參數：
Graphics：Graphics對象，可調用GdipCreateFromHDC函式創建
image：image對象，可由GdipLoadImageFromFile載入的圖像檔案，相比較gdi函式LoadImage而言，GdipDrawImageRect可以載入包括點陣圖外如jpg等當前主流圖片格式。
X：顯示起始位置X坐標，對應圖像的左上角
Y：顯示起始位置Y坐標，對應圖像的左上角
Width：圖像寬度，可調用GdipGetImageWidth函式獲取圖像實際寬度賦值
Height：圖像高度，可調用GdipGetImageHeight函式獲取圖像實際高度賦值
返回值：GpStatus類型值
說明：Width、Height假如等於圖片的實際尺寸，那圖片將按原大小顯示，否則將按新尺寸進行縮放。
該方法被重載，可參閱：GdipDrawImage、GdipDrawImageI、GdipDrawImagePointRect、GdipDrawImagePointRectI、GdipDrawImagePoints、GdipDrawImagePointsI、GdipDrawImagePointsRectI、GdipDrawImageRectI、GdipDrawImageRectRect、GdipDrawImageRectRectI
備註：.net平台封裝了該方法在Graphics類中
