Hi, I don't know, however what I would do is this: add some code to log all parameter values and the return value and the GetLastError value (only when it failed!) to a file when it succeeds and when it fails. Looking at those numbers is likely to tell you what is going on. :) Luc Pattyn [Forum Guidelines] [My Articles] Nil Volentibus Arduum Please use <PRE> tags for code snippets, they preserve indentation, improve readability, and make me actually look at the code.

You're welcome. Just say 'NO' to evaluated arguments for diadic functions! Ash

Simple mathematics would suggest that the only way to improve this situation is to find a way of ensuring that the x-value is within a reasonable range. The rules are the rules I am afraid. Just say 'NO' to evaluated arguments for diadic functions! Ash

I understood. Thanks you all for your replies.

Actually at one place i am using the follwing code and dcRef is NULL in my case so it is going to the else part. mDC = new CMetaFileDC(); if (mDC != 0) { HDC myhdl; if (dcRef != 0) { myhdl = dcRef->m_hAttribDC; } else { myhdl = getDC(); dcRef = CDC::FromHandle(myhdl); } mDC->CreateEnhanced(dcRef, 0, bounds, description); mDC->SetAttribDC(myhdl); // Set default mapmode to MM\_HIMETRIC mDC->SetMapMode(MM\_HIMETRIC); } Is there any problem in passing a pointer acquired from CDC::FromHandle to CreateEnhanced. At some other place i am using mMetaFileHandle = mDC->CloseEnhanced(); delete mDC; mDC = 0; do something ..... if (mMetaFileHandle != 0) { // Release metafile handle if existing ::DeleteEnhMetaFile(mMetaFileHandle); mMetaFileHandle = 0; } HDC myhdl = getDC(); CDC dc; dc.Attach(myhdl); dc.DeleteDC(); In the above code getDC is returning a handle to the device context.

Ok, so the problem is with vc6. Thanks for the help.

Thanks is is working after checking the condition if((wparam == VK_F10) && (lparam < 0)) { DoSomething(); }

Hi I using the create function to create the modeless dialog box and DestroyWindow() to close it.

Hi, Its working. Thanks a lot.:-)

Hi, Thanks for replying. Actually it was my fault because the coordinates which i was using as boundry for tooltip were not correct.

Hi, the application is working fine after using OnCaptureChanged. Thanks

Hi, i think the solution which u r suggesting will definately work. But i have overridden createDCForPrint() and in one function i am already using new to create CMetaFileDC object. I will try to implement ur solution if possible. Thanks

FindWindow() internally sends each top-level window a WM_GETTEXT message. But if the thread that owns that window is blocked (e.g., a Semaphore, a Mutex, an Event, an I/O operation), SendMessage() will block until that thread frees up and runs. Since this could potentially never happen, FindWindow() will block forever. "Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

I want the focus on combobox also, when user presses the tab key on the control previous to the ComboBox. So, problem was that if the focus is on Combobox and user presses the tab key, then it should move to the next control. Thanks

Thanks to both of you. My problem is solved now, after using the above mentioned function.

Thanks it is working correctly now.

Hi, thanks for replying. I tried to convert the FILETIME into year, months etc by calculating the no of 100 nano second intervals from 1601. But the value i am geting is quite high. Thanks.