Command Bars - Load Logo is error.

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Load Logo is error.

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Category: Codejock Products
Forum Name: Command Bars
Forum Description: Topics Related to Codejock Command Bars
URL: http://forum.codejock.com/forum_posts.asp?TID=12280
Printed Date: 28 February 2025 at 8:05pm
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Topic: Load Logo is error.

Posted By: homaas
Subject: Load Logo is error.
Date Posted: 28 September 2008 at 10:54pm

I want load logo as image below

I want load logo for dialog with toolbar (not Ribbonbar) ,it ok in WinXP,winVista, but it not display logo in Win98, please help me.

Replies:

Posted By: homaas
Date Posted: 29 September 2008 at 3:13am

code for load Logo Image:

Bool :: OnInitDialog()

{

VERIFY(m_bmpLogo.LoadBitmap(IDB_LOGO));
BITMAP bm;
m_bmpLogo.GetBitmap(&bm);
m_imgLogo.Create(NULL, WS_CHILD|WS_VISIBLE|SS_BITMAP|SS_CENTERIMAGE, CRect(0, 0, 0, bm.bmHeight), this);

if(!m_wndReBar.Create(this, 0)
|| !m_wndReBar.AddBar(&m_imgLogo, NULL, NULL, RBBS_NOGRIPPER | RBBS_FIXEDBMP | RBBS_FIXEDSIZE)) {
return -1;
}
UpdateLogoImage();

}

/////////

void ::OnPaint()
{
CPaintDC dc(this);
UpdateLogoImage();
}

////////

void ::UpdateLogoImage()
{
RepositionBars( AFX_IDW_CONTROLBAR_FIRST, AFX_IDW_CONTROLBAR_LAST, 0 );

if(m_imgLogo.GetSafeHwnd()) {
RECT r;
GetClientRect(&r);

m_imgLogo.SetBitmap(NULL);

BITMAP bmLogo;
m_bmpLogo.GetBitmap(&bmLogo);

int nWidth = r.right - r.left;
int nHeight = bmLogo.bmHeight;

CBitmap bmpNew;
bmpNew.CreateCompatibleBitmap(GetDC(), nWidth, nHeight);

  CDC dcBmpSrc;
  if(dcBmpSrc.CreateCompatibleDC(NULL)) {
   dcBmpSrc.SelectObject(m_bmpLogo);

   CDC dcBmpNew;
   if(dcBmpNew.CreateCompatibleDC(NULL)) {
    dcBmpNew.SelectObject(bmpNew);

BITMAP bmSrc;
m_bmpLogo.GetBitmap(&bmSrc);

dcBmpNew.FillRect(CRect(0, 0, nWidth, nHeight), &CBrush((COLORREF)0xffffff));
dcBmpNew.BitBlt(nWidth - bmSrc.bmWidth, 0, bmSrc.bmWidth, bmSrc.bmHeight, &dcBmpSrc, 0, 0, SRCCOPY);

dcBmpNew.DeleteDC();

    m_imgLogo.SetBitmap(bmpNew);    }
   dcBmpSrc.DeleteDC();
  }
}
}

Posted By: Oleg
Date Posted: 29 September 2008 at 4:12am

Hi,

You call GetDC but not ReleaseDC, you call GetDC in OnPaint handler.

Comment this call in OnPaint. better move it to OnSize. and dont' forget add ReleaseDC.

-------------
Oleg, Support Team
CODEJOCK SOFTWARE SOLUTIONS

Posted By: homaas
Date Posted: 30 September 2008 at 12:45am

hi Oleg,

add ReleaseDC in OnPaint: but not display logo

void ::OnPaint()
{
CPaintDC dc(this);
HDC hdc=dc.GetSafeHdc();

UpdateLogoImage();

::ReleaseDC(GetSafeHwnd(),hdc);

}

if I comment GetDC call in OnPaint is not display logo.

call UpdateLogoImage() int Onsize();

void ::OnSize(UINT nType, int cx, int cy)
{
CXTPDialogBase<CXTResizeDialog>::OnSize(nType, cx, cy);
UpdateLogoImage();

}

Posted By: mgampi
Date Posted: 01 October 2008 at 3:57am

Hi;

as Oleg explained, you call GetDC() in UpdateLogoImage() but never call ReleaseDC():