bitmap图片读入memory，然后再显示出来的例子 -bitmap images into memory, then the examples show

使用IBitmap接口编程实现位图的显示。在该程序中，当用户按“1”键时，在屏幕上绘制一个红色的圆（用于在显示位图过程中进行对比）。按“2”键时，加载一幅位图并在屏幕上进行显示。-Use programming interface IBitmap bitmap display. In the process, when the user presses the " 1" key, the screen drawing

Public Sub DibGet(ByVal IdSource As Long, XBegin As Long, ByVal YBegin As Long, ByVal XEnd As Long, ByVal YEnd As Long) Dim iBitmap As Long Dim iDC As Long Dim I As Long Dim W As Long Dim H As Lo