Question

我想用SendMessage来发送字符串，怎么办

Answer 1

发送 :

COPYDATASTRUCT cds;

AnsiString Data=Edit2->Text;//"Just a test";

cds.dwData=sizeof(COPYDATASTRUCT);
cds.cbData=Data.Length();
cds.lpData=(LPVOID)Data.c_str();

//想目标窗口发消息WM_COPYDATA
SendMessage((HWND)Edit1->Text.ToInt(),WM_COPYDATA,(WPARAM)NULL,(LPARAM)&cds);

接收:

if(Message.Msg==WM_COPYDATA)
{
COPYDATASTRUCT *cds;
char* DataBuf;

cds=(COPYDATASTRUCT*)Message.LParam;
DataBuf=new char[cds->cbData];
CopyMemory(DataBuf,cds->lpData,cds->cbData);

AnsiString Str=AnsiString(DataBuf);
Memo1->Lines->Add("Str="+Str);

delete[] DataBuf;
}