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I have an application that assembles a set of data into a memory device context which is then taken line by line and output to an external device. Some of what gets put into the MemDC includes text (for labels, etc), and I create a CFont object and then use TextOut to render the text on the MemDC.
When the screen is set to 8-bit color, everything works fine and the text is normal and as expected. When the screen is changed to 16-bit color, the font look enlarged and as if it is missing every other pixel. Alignment and positioning also get whacked.
What should I be paying attention to in order to get a 12-point font to be rendered properly in both 8- and 16-bit color modes, as well as in 24- and 32-bit color if the user has their screens set to that? We started using 8-bit color because the image data is 0-255 values and is palette based.
Any suggestions and pointers will be greatly appreciated.
Dave
"You can say that again." -- Dept. of Redundancy Dept.
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at www.aoi.it, there is cximage (v5.50) with a DrawText method that works fine in every screen resolution.
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Hello there,
Does anyone know how to determine programmatically which Windows XP style/theme (i.e. Windows XP, classic, etc) is in use?
I owner-draw my own caption bar and on other OS's I can use CDC::DrawFameControl which nicely draws the correct buttons in the correct place. However DrawFrameControl on XP not only draws the buttons incorrectly, it changes the entire style of the window to be old-style too.
I need to owner-draw different buttons dependent on the current theme.
Any suggestions would be appreciated...
Thanks
Liam Elliott
Software Developer
Prism Sound
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User DrawThemeBackground with correct themedata from OpenThemeData() function, You can easily find information about this at google
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Hi,
I'm trying to read (binary) data from stdin, using fread. Of course, if I try to make fread read more than is available in the buffer, it blocks. Is there a way I can check how much is available to read before actually issuing the fread call?
thanks
Jon
#include <beer.h>
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Depending on what binary data you are reading, there should be a "smallest unit" of data that you know about. If you are reading single bytes, then obviously a byte is the smallest unit. Same if you know you are reading words or dwords. If you are reading user-defined structures, then you read 1 structure of X bytes.
With that in mind, you do a read and then check the return value to see if there was data or not. This is assuming, of course, that you know the structure of the binary data you are reading.
Dave
"You can say that again." -- Dept. of Redundancy Dept.
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Hi,
I am writing a program to append two or more GSM wave files but I need more information about GSM wave files format. Where can i find them and how to append GSM files.
Please help...
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Hi All,
here is the link( www.tu-bs.de/~y0017025/image.htm )in which i have
posed my problem. Am new to image processing.
Any help is highly appriciated.
Thanks!!
--Sridhar
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Just to clarify things a little. I don't know medical terminology. I assume you want the nail centered in the shaft and inserted at the proper angle relative to the shaft. If so, I think it is a little more complicated than just finding the center at one point. The shaft appears to be curved, so you will have to find several centerpoints in order to construct a curve or spline. Then the nail would be inserted tangent to the curve or spline.
Since the image has high contrast between the bone and the background it shouldn't be two difficult to implement an algorithm that finds the edges. If you search this site or the internet for edge finding algorithm's you should find one fairly easlily.
Gary Kirkham
A working Program is one that has only unobserved bugs
I thought I wanted a career, turns out I just wanted paychecks
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Hi Gary,
Thanks alot for the reply. Yeah as you told one mid point is not sufficient to find the center line. I will find several midpoints at some ample distance in bone so that when i join all the midpoints i will get a curve or tangent line which is the center of bone.
To find mid point i want some code. As i have already used Sobel and Perwitt method algorthims to find edges of bone.
Please suggest me some code or links to find Center.
Thanks again
Ciao,
--Sridhar
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I think once you have the edge coordinates it shouldn't be too difficult to develop an algorithm to find a curve that minimizes the distance between the two shaft curves.
I think the bigger problem is how to programmatically determine where the shaft begins and ends. I.E. where the shaft meets the end of the bone.
Gary Kirkham
A working Program is one that has only unobserved bugs
I thought I wanted a career, turns out I just wanted paychecks
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I need some help regarding programming. How to program my problem.
--Sridhar
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Hi,
When I convert a Visual C++ 6.0 project to Visual C++ .NET by opening the project using .NET environment, and accepting all VC 7.0 conversion defaults, the resulting project would not compile, and gives this error:
Compiler error C2065: '_mbstowcsz': undeclared identifier.
But this functions compiles ok on VC++ 6.0.
This function has these parameters:
in VC6.0++:
int _mbstowcsz(wchar_t*, const char*, size_t) ;
in VC++.NET:
int _mbstowcsz(wchar_t*, const char*, ULONG) ;
Since VC++6.0 and VC++.NET put this function in different locations, I did change the Properties setting for included path, and make it use Dynamic ATL since in VC++.NET this function is in atlmfc/include. I also change Properties/C/C++/Language/Treat wchar_t as Built-in Type to "No". But nothing works.
Please help.
Thanks.
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could it be that it is ATL::_mbstowcsz instead of _mbstowcsz?
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Yes, this works, Thank you 
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The c++ compiler take the two function as different function,because the third parameter is different, modify this parameter type to ULONG and try again,good luck!
I am seeking...
For what?
Why did you ask me for what? I don't know!
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Changing the parameter type to ULONG does not fix the compiler error. But thanks anyway.
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I have dialog application. One of the controls is the Internet Explorer instance (CHtmlCtrl).
The problem is, that my dialog keyboard accelerators works fine until the IE has the cofus. How to force IE to send accelerators other than IE's standard accelerators to parent window ?
Thanx
rrrado
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Hello,
I'm using this:
void CTCCDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
DWORD dwStyle;
if ((nID & 0xFFF0) == SC_RESTORE)
{
nID = SC_MINIMIZE;
}
CDialog::OnSysCommand(nID, lParam);
}
but the window doesn't get minimized.
thank you in advance.
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Hi
instead of nID = SC_MINIMIZE; try SendMessage(WM_SYSCOMMAND, SC_MINIMIZE, 0, 0);
hope this helps
modified 12-Sep-18 21:01pm.
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Is there a relatively easy way to get video in to a Window using Visual c++ ?,
i.e. using a webcam or a video camera connected to a graphics card.
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hi there,
if i add a handler ON_WM_KILLFOCUS() for modalless dialog box and if i try to go to some other dialog box or try to loose the focus then the killfocus function is not getting called at all.
why?
cheers
rajs
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This article http://www.codeproject.com/dialog/killfocus.asp[^] may be of help.
Roger Allen
Sonork 100.10016
This is a multiple choice question, choose wisely
Why did the hedgehog cross the road?
A: To show he had guts?
B: To see his flat mate?
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WM_ACTIVATE can also be used.
The handler gets the new window and the old one.
Max.
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