如何得到主窗口中Image1->Canvas->Handle?
gioc 2006-08-31 12:31:24 我自定义的类写在一个.h文件中(#include了主窗口的头文件),类里有个画图函数,里面有如下代码:
::StretchDIBits(Application->MainForm->img1->Canvas->Handle,
0, 0,
dst_width, dst_height,
0, 0,
src_width, src_height,
&bmp_data,
pbmi.get(),
DIB_RGB_COLORS,
SRCCOPY);
我想调用主窗口中的img1->Canvas->Handle,
可编译总提示:E2316 'img1' is not a member of 'TForm'
请问该怎么写?