C / C++ / MFC

Iain Clarke, Warrior Programmer

26-Jul-09 3:25

There are several color pickers articles on code project.
Check out these links -

Office 2003 Color Picker[^]
Color Picker for WTL with XP themes[^]
XColorSpectrumCtrl - a non-MFC color picker control that displays a color spectrum[^]
Adobe Color Picker Clone part 1[^]
A sophisticated color picker control[^]

«_Superman_»
I love work. It gives me something to do between weekends.

Re: colour controls.

Penfold82126-Jul-09 10:48

Penfold821

26-Jul-09 10:48

thanks for your response... unfortunately those links don't actually help me with what i want to do, but interesting all the same.
I've managed to sort it now anyway, cheers.

Re: [Message Deleted]

Iain Clarke, Warrior Programmer27-Jul-09 0:57

27-Jul-09 0:57

Did you use a lot of swearing and bad language in your original question?

It's bad manners to remove questions - other people might learn from them. We live in hope, anyway.

Iain.

I have now moved to Sweden for love (awwww).
If you're in Scandinavia and want an MVP on the payroll (or happy with a remote worker), or need cotract work done, give me a job! http://cv.imcsoft.co.uk/[^]

Re: [Message Deleted]

Penfold82127-Jul-09 1:59

Penfold821

27-Jul-09 1:59

I sort of deleted it by mistake to be honest, and didnt know how to undo it.

Sorry.

Re: [Message Deleted] - Not the end of the world

Iain Clarke, Warrior Programmer27-Jul-09 3:28

Iain Clarke, Warrior Programmer

27-Jul-09 3:28

As subject, no worries. Glad your problem was resolved.

Iain.

Transparent Window on an WinCe-based PNA

ml196925-Jul-09 22:59

ml1969

25-Jul-09 22:59

Hello,

I tried a lot... but I cannot create a transparent topmost window on a wince based PNA.

SetLayeredWindowAttributes an other stuff were not suported on wince Frown | :-(

If I use this

hwnd = CreateWindow(L"testerClass",L"tester Program", WS_OVERLAPPEDWINDOW, -25,-25, 65, 65, NULL, NULL, ghInstance, NULL);

I get a topmost window, titlebar is not visible (thats ok) and a white rectangle....

Is it possible to get the white region transparent?

Thats all I want Smile | :)

Michael

«_Superman_»26-Jul-09 3:43

26-Jul-09 3:43

You can use the AlphaBlend[^] function which is available in Win CE.
Here is an article in CodeProject on Using the AlphaBlend function[^]

«_Superman_»
I love work. It gives me something to do between weekends.

ml196927-Jul-09 1:32

ml1969

27-Jul-09 1:32

Hi,

do you mean this works also with a window?

I tried this

BLENDFUNCTION bf;
dcOld = GetDC(NULL);
    hwnd = CreateWindow(L"testerClass",L"tester Program", WS_OVERLAPPEDWINDOW, -25,-25, 65, 65, NULL, NULL, ghInstance, NULL);


SetWindowPos(hwnd, HWND_TOPMOST, -25, -25, 65,65,SWP_NOOWNERZORDER| SWP_SHOWWINDOW);
dcNew = GetDC(hwnd);



bf.BlendOp = AC_SRC_OVER;
bf.BlendFlags = 0;
bf.SourceConstantAlpha = 120;
bf.AlphaFormat = AC_SRC_ALPHA;

AlphaBlend(dcOld, -25, -25, 65, 65, dcNew, -25, -25, 65,65, bf);

UpdateWindow(hwnd);

but I allways get the window, like without alphablend.....

It sounds very well, if it will work.....

Any suggestions? Waht I did wrong?

Michael

«_Superman_»27-Jul-09 1:52

27-Jul-09 1:52

Take a look at this article here - Alpha Blending (Transparent) Windows[^]

«_Superman_»
I love work. It gives me something to do between weekends.

HttpSendRequest() not sending out HTTP requests

ml196928-Jul-09 6:55

ml1969

28-Jul-09 6:55

mhh...

the last link, I think, will not work on a WinCE powered PNA, cause the article says that the newest Win32 Api from Win2000 and above is requiered. Also there is no stdafx.h for wince Frown | :-(

It looks very interesting but I didnot found something thar could help me.

The first thing, will work on WinCe (btw. I didnot get an Error while compiling) but I do not understand all...

With the first suggestion, I tried this...

BLENDFUNCTION bf;

hwnd = CreateWindow(L"testerClass",L"tester Program", WS_POPUP, -25,-25, 65, 65, NULL, NULL, ghInstance, NULL);

bf.BlendOp = AC_SRC_OVER;  //as described in the article
bf.BlendFlags = 0;  //as described in the article
bf.SourceConstantAlpha = 120;  //as described in the article  
bf.AlphaFormat = AC_SRC_ALPHA;  //as described in the article

AlphaBlend(destHDC, -25,-25,65,65,srcHDC,-25,-25,65,65,bf);

hwnd is "my" window and stays ontop of the other window , lets say hwnd2.

How should I use dstHDC and scrHDC?
It is enough to call it like
HDC dstHDC = GetDC(hwnd);
HDC srcHDC = GetDC(hwnd2);

This do not change anything... The window (hwnd) is still visible, full visible.

Michael

GusSabina25-Jul-09 19:13

GusSabina

25-Jul-09 19:13

Hello:

I need to use WinInet.dll for HTTP in Asynchronous mode.
Right now, I have it working fine but using InternetOpenURL().
As eventually I would need to use POST commands, I would like to work using HttpOpenRequest() and HttpSendRequestEx().
When I use HttpSendRequest() (or HttpSendRequestEx()), I get False as a response, but GetLastError() gives 997 which means 'I/O Pending', what I interpret is Ok as I'm using the function asynchronously. After this, the callback function received the Code 100 which means 'INTERNET_STATUS_REQUEST_COMPLETE', which would mean the request was sent succefully.
However, reading the data, the buffer is empty. Also, I use a sniffer and I can see that there is no HTTP request sent out to the server, so I don't know why the callback receive the 'INTERNET_STATUS_REQUEST_COMPLETE' message but the function apparently failed.
Using the sniffer with the InternetOpenURL() function, I an see the request and the response from the server..

Any idea? What else can I check in order to detect why is not working?

Thanks in advance
Gus

Compiler / Linker settings.

FISH78625-Jul-09 18:59

25-Jul-09 18:59

Is it possible to copy settings from one project to the other.

If so how to do it?

«_Superman_»26-Jul-09 3:47

26-Jul-09 3:47

All project settings of a project are stored in its .vcproj or .vcxproj file which is nothing but an xml file. So all you need to do is to replace the relevant sections by copying from one file to another by opening the file in some text editor like notepad.

«_Superman_»
I love work. It gives me something to do between weekends.

FISH78626-Jul-09 4:52

26-Jul-09 4:52

Thank you.

I am trying to follow some intructions on how to create Property sheet based application.
When I compile and run in degug mode I get:
I am getting First-chance exception at 0x5d0c373e in LastTry.exe: 0xC0000005: Access violation writing location 0x00416e8c.
In debug mode however when i exit I get a The program '[3124] LastTry.exe: Native' has exited with code 0 (0x0).

I was able to get the original source code from the demo site. When I compiled that and ran it.
There was no exception.

There is one line in my stdafx.h which is not in the original source code.
It is to do with :
#include <afxcontrolbars.h> // MFC support for ribbons and control bars

How do I resolve this issue?
I have tried to comment the above line obviously gives me more compile errors.
What could I have done wrong? Or is it something that was not right in my install of VStudio 2008?

«_Superman_»26-Jul-09 16:40

26-Jul-09 16:40

You should single step using the debugger and find out the line where you get the first chance exception.

«_Superman_»
I love work. It gives me something to do between weekends.

FISH78626-Jul-09 16:53

26-Jul-09 16:53

in debug before I go here no exception error:
BOOL bResult = CPropertySheet::OnInitDialog();
I get the error inside this...

FISH78628-Jul-09 10:54