分析源代码:procedure TCustomForm.CloseModal;
var
CloseAction: TCloseAction;
begin
try
CloseAction := caNone;
if CloseQuery then
begin
CloseAction := caHide;
DoClose(CloseAction);
end;
case CloseAction of
caNone: ModalResult := 0;
////////////////////////////////////////////
// 这里是对 Action 的判断 caFree: Release;////////////////////////////////////////////
end;
except
ModalResult := 0;
Application.HandleException(Self);
end;
end;// Release 方法procedure TCustomForm.Release;
begin
PostMessage(Handle, CM_RELEASE, 0, 0);
end;// CMRelease 处理 CM_RELEASE 消息procedure TCustomForm.CMRelease;
begin
Free; // 释放窗体
end;
var
CloseAction: TCloseAction;
begin
try
CloseAction := caNone;
if CloseQuery then
begin
CloseAction := caHide;
DoClose(CloseAction);
end;
case CloseAction of
caNone: ModalResult := 0;
////////////////////////////////////////////
// 这里是对 Action 的判断 caFree: Release;////////////////////////////////////////////
end;
except
ModalResult := 0;
Application.HandleException(Self);
end;
end;// Release 方法procedure TCustomForm.Release;
begin
PostMessage(Handle, CM_RELEASE, 0, 0);
end;// CMRelease 处理 CM_RELEASE 消息procedure TCustomForm.CMRelease;
begin
Free; // 释放窗体
end;
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