Question

怎么用C++ Builder消息机制

Answer 1

.h文件里面
BEGIN_MESSAGE_MAP
VCL_MESSAGE_HANDLER(WM_USER + 101，TMessage, xxxx);

END_MESSAGE_MAP(TForm)

void __fastcall xxxx(TMessage &Msg);

.cpp 文件

void __fastcall xxxx(TMessage &Msg)
{
switch(Msg.WParam)
{

case 1: break;

case 2:break;
}

}

PostMessage(Handle, WM_USER + 101, 1, 0);