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cxgn

moving forms on the desktop - VC++ .NET

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hi, I am trying to move my entire form on the windows desktop when the user clicks on the body of the form. with my code it give crazy flickering an strange behaviour when moving the form. this is the code that moves the form that I have TetrisF.cpp
TetrisF::TetrisF()
{
	this->add_MouseMove(new MouseEventHandler(this, TFMouseMove));
	this->add_MouseDown(new MouseEventHandler(this, TFMouseDown));
	this->add_MouseUp(new MouseEventHandler(this, TFMouseUp));

	SetStyle(ControlStyles::DoubleBuffer, true);
	SetStyle(ControlStyles::UserPaint, true );
	SetStyle(ControlStyles::AllPaintingInWmPaint, true );
	UpdateStyles(); 
}

void TetrisF::TFMouseMove(Object *sender, MouseEventArgs *e)
{
	if (movingWindow)
		this->set_Location(Point(e->X, e->Y));
}

void TetrisF::TFMouseDown(Object *sender, MouseEventArgs *e)
{
	movingWindow = true;
}

void TetrisF::TFMouseUp(Object *sender, MouseEventArgs *e)
{
    movingWindow = false;
}

 
and TetrisF.h
public __gc class TetrisF : public Form
{
public:

	TetrisF();

private:

	static bool movingWindow = false;

	void TFMouseMove(Object *, MouseEventArgs *);
	void TFMouseDown(Object *, MouseEventArgs *);
	void TFMouseUp(Object *, MouseEventArgs *);
};
 
any help would be appreciated

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