C++ Draggable無國界形式

Question

好吧，我正在Microsoft Visual Studio C++ 2010中製作簡單的便籤應用程序（Winodws Forms）in C++。 我試圖製作一個可拖動的無邊框窗體。 我現在的密碼是：

private: System::Void Form1_Load(System::Object^ sender, System::EventArgs^ e) 
{ 
this->dragging = false; 
} 

private: System::Void Form1_MouseDown(System::Object^ sender, System::Windows::Forms::MouseEventArgs^ e) 
{ 
this->dragging = true; 
this->offset = Point(e->X, e->Y); 

} 


private: System::Void Form1_MouseMove(System::Object^ sender, System::Windows::Forms::MouseEventArgs^ e) 
{ 
if (this->dragging) 
{ 
Point currentScreenPos = PointToScreen(e->Location); 
Location = Point(currentScreenPos.X - this->offset.X, currentScreenPos.Y - this->offset.Y); 
} 

} 

private: System::Void Form1_MouseUp(System::Object^ sender, System::Windows::Forms::MouseEventArgs^ e) 
{ 
this->dragging = false; 
} 

這對我不起作用。誰能幫忙？

Answer 1

而不是手動跟蹤鼠標，讓操作系統爲你做。攔截WM_NCHITTEST並返回HTCAPTION。或者，只使用MouseDown事件，向窗口發送特殊的WM_SYSCOMMAND/SC_DRAG消息。 MSDN上有大量有關拖動無邊框和/或無字幕窗口的信息。