C / C++ / MFC

BCGPTabWnd OnSize Problem

10-Feb-12 3:12

Try using ShellExecuteEx() instead. It gives you back information that you can subsequently send to TerminateProcess().

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Jan_fuman9-Feb-12 23:30

Jan_fuman

9-Feb-12 23:30

Hello,
I have trouble with an OnSize handler.
In the OnSize Handler of a view I call a "Tab->MoveWindow(...)"
But in this Tab-Control (of kind CBCGPTabWnd) I never step into the OnSize Handler when I'm sizing the framewindow.
I tested it with breakpoints and OutputDebugStrings.

I even set a breakpoint into the WindowProc function to test if a WM_SIZE message occurs, but it never happens.

If I reproduce this strange effect on 2 computers, it works all fine on the first, but the second one has this effect.
It's the same Exe-File, both computers are using Windows 7 64bit (with Visual Studio 2010)

Does anyone knows a solution??

Thanks ahead Smile | :)

Best wishes, Jan

modified 10-Feb-12 6:56am.

EnumDisplaySettings() always returns false

Kiran Satish9-Feb-12 18:45

9-Feb-12 18:45

I am trying to get the resolution of all the monitors that are on connected to the system. Here is how I am trying to do
1) Read number of monitors in the system
2) For each monitor get the device info using EnumDisplayDevices().
3) In step2, I am getting all the info including DeviceName
4) Using the DeviceName from above I am calling EnumDisplaySettings(), but this function is always returning false except when I use NULL for the first parameter where it gives me details of primary monitor.

Any ideas why its returning false when using the DeviceName from step2.

thanks

PKNT

_AnsHUMAN_ 9-Feb-12 19:56

_AnsHUMAN_

9-Feb-12 19:56

Quoting from MSDN:
Graphics mode indexes start at zero. To obtain information for all of a display device's graphics modes, make a series of calls to EnumDisplaySettings, as follows: Set iModeNum to zero for the first call, and increment iModeNum by one for each subsequent call. Continue calling the function until the return value is zero.

When you call EnumDisplaySettings with iModeNum set to zero, the operating system initializes and caches information about the display device. When you call EnumDisplaySettings with iModeNum set to a nonzero value, the function returns the information that was cached the last time the function was called with iModeNum set to zero.

Check if it helps

You talk about Being HUMAN. I have it in my name
AnsHUMAN

Kiran Satish10-Feb-12 3:12

10-Feb-12 3:12

Thanks for the info. But I already tried this with the same result.

result = EnumDisplaySettings(lpdParams.DeviceName,0,&lpDMode);

where lpdParams is DISPLAY_DEVICE variable that has been populated with data returned from

EnumDisplayDevices(NULL, 1, &lpdParams, EDD_GET_DEVICE_INTERFACE_NAME);

Not sure where I am doing wrong.

thanks

PKNT

David Crow10-Feb-12 3:17

10-Feb-12 3:17

Do you have some sort of loop set up for this? Something like:

int result = -1;

for (int x = 0; result != 0; x++)
    result = EnumDisplaySettings(lpdParams.DeviceName, x, &lpDMode);

Kiran Satish10-Feb-12 3:23

10-Feb-12 3:23

I have no loops for this functions. This function is called the same way I noted earlier after EnumDisplayDevices() only once.

thanks

PKNT

David Crow10-Feb-12 3:54

10-Feb-12 3:54

Kiran Satish wrote:
I have no loops for this functions.

My bad. I just assumed when _AnsHUMAN_ suggested the same thing, that your "But I already tried this..." reply meant you were using a loop of some sort.

Kiran Satish10-Feb-12 6:16

10-Feb-12 6:16

I found out that this problem is only on Windows 7, the function ran fine on XP. Any ideas about this issue on win7??

thanks

PKNT

David Crow10-Feb-12 7:11

10-Feb-12 7:11

Kiran Satish wrote:
Any ideas about this issue on win7??

UAC, perhaps?

Kiran Satish10-Feb-12 7:15

10-Feb-12 7:15

UAC on my system is turned off. So, I guess its not causing the problem as the first function runs fine.

thanks

PKNT

MCTS certification

shanmugarajaa9-Feb-12 18:09

shanmugarajaa

9-Feb-12 18:09

Hello Friends,
I am planning to do MCTS: .NET Framework 4, Windows Applications and I was searching for study materials or dumps. Friends kindly help me if you have any study materials or dumps for this certification.

Regards,
S.Shanmugaraja

CPallini9-Feb-12 20:49

CPallini

9-Feb-12 20:49

And you ask it at the native C++ forum?
Big Grin | :-D

Veni, vidi, vici.

Richard MacCutchan9-Feb-12 22:09

Richard MacCutchan

9-Feb-12 22:09

Why are you asking here? This is a Microsoft certification so go to the Microsoft web site and search there.

Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman

shanmugarajaa9-Feb-12 22:47

shanmugarajaa

9-Feb-12 22:47

Thanks for your advices.