Draw and re-pos CStatic controls in CDockablePane

[Member 8534035]

Hi all, I have spend already many hours to find the reason of my current problem. I have a CDockablePane, in which I am placing a lot of CStatic controls. The CStatic controls I am using to display bitmaps. A dockable pane is designed for resizing at any time. Therefore I try to recalculate the positions of each CStatic after OnSize is called. With some CStatic controls it is running well. But when I am adding an additional control, I am getting strange problems: The pane is not repainted properly and OnPaint is recalled cyclically. My code (partially): Header:

class CPaneCtrlPLC : public CDockablePane
{
DECLARE_DYNAMIC(CPaneCtrlPLC)

public:
CPaneCtrlPLC();
virtual ~CPaneCtrlPLC();

protected:
DECLARE_MESSAGE_MAP()
public:
afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
afx_msg void OnSize(UINT nType, int cx, int cy);

private:
CStatic m_Ctrl_PLCLED[6];
CStatic m_SwitchCtrl;
CStatic m_Ctrl_test;

C-File:

int CPaneCtrlPLC::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CDockablePane::OnCreate(lpCreateStruct) == -1)
return -1;

m\_ColorSieGreen = RGB(0, 153, 153);
m\_ColorSieWhite = RGB(251, 253, 253);
m\_ColorText = RGB(230, 228, 193);
m\_ColorBgnd = RGB(119, 117, 127);
m\_BrushSieGreen.CreateSolidBrush(m\_ColorSieGreen);
m\_BrushBgnd.CreateSolidBrush(m\_ColorBgnd);

m\_BitmapSWITCHSTOP.LoadBitmapW(IDB\_SWITCH\_STOP);
m\_bitmapLEDOFF.LoadBitmapW(IDB\_LEDOFF);
m\_bitmapLEDRED.LoadBitmapW(IDB\_LEDRED);
m\_bitmapLEDGREEN.LoadBitmapW(IDB\_LEDGREEN);
m\_bitmapTest.LoadBitmapW(IDB\_LEDGREEN);

// TODO:  Add your specialized creation code here
DWORD dwStyle = WS\_CHILD | WS\_VISIBLE | TVS\_SHOWSELALWAYS | SS\_BITMAP;
m\_SwitchCtrl.Create(NULL, dwStyle, CRect(0, 0,0,0),this);
m\_SwitchCtrl.SetBitmap(m\_BitmapSWITCHSTOP);

int iLed;
for (iLed = 0; iLed < MaxNumPLCLeds; ++iLed)
{
	DWORD dwStyle = WS\_CHILD | WS\_VISIBLE | TVS\_SHOWSELALWAYS | SS\_BITMAP;
	m\_Ctrl\_PLCLED\[iLed\].Create(NULL, dwStyle, CRect(xPosPLCLEDS,(yPosPLCLEDS + (26\* iLed)), 0, 0), this);
	m\_Ctrl\_PLCLED\[iLed\].SetBitmap(m\_bitmapLEDOFF);
}

{
	DWORD dwStyle = WS\_CHILD | WS\_VISIBLE | TVS\_SHOWSELALWAYS | SS\_BITMAP;
	m\_Ctrl\_test.Create(NULL, dwStyle, CRect(xPosPLCLEDS + (17 \* iLed), yPosPAELEDS + 20, 0, 0), this);
	m\_Ctrl\_test.SetBitmap(m\_bitmapTest);
}

...

I was able to strip the OnPaint(0) function to a minumum to reprocude the problem. If I comment out the re-positioning of the m_Ctrl_test, everything works fine, but with this statement I have

[Member 8534035]

Solved by myself! In OnPaint() I changed the positions of the CStaticControls. Of course this is causing "recursive" WM_PAINT calls. I moved this code to other functions (OnSize, OnTimer,...), now it works!