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I never meant to imply that some conversion wasn't necessary. You're absolutely correct that one of the operands must be a CString. I was merely showing an alternative approach that doesn't require declaring another variable. At the end, both are essentially the same thing.
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Hi
I have created a new Icon image for my program. I set the small icon and big one to my new icon and everything work fines. The problem is when i open the folder containing my exe file (inside debug):
If i chose view -> Large Icons, i see that my app has my new icon
BUT IF I CHOSE view -> Small Icons or List or Details, i see that my app icon is not my new one but the standard MFC blue icon.
How can i change that?
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good question..! but no clue 
V
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In the Icon editor, you'll need to edit both the large (32x32) and small (16x16) images. It sounds as if you've changed the 32x32 image, but not the 16x16 one. An icon can contain multiple images, at different sizes and colour depths, and if you edit the icon, you have to edit them all.
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I don't understand
In the Icon editor there is only one icon so i edited it
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Ah Ok man thx a lot ur the man
But u should do one more thing:
remove the following command: SetIcon(m_hIcon, FALSE);
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Halawlaws wrote:
remove the following command: SetIcon(m_hIcon, FALSE);
why removing such a code line, that was generate by the wizard ???
it is there to draw the icon in small or high size depending on the program state (size of the window)...
TOXCCT >>> GEII power
[toxcct][VisualCalc]
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toxcct wrote:
why removing such a code line, that was generate by the wizard ???
Coz if u dont it wont work
da 
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it's always been morking for me...
i think you've broken one more thing, because it should work without removing that line...
TOXCCT >>> GEII power
[toxcct][VisualCalc]
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Gotcha!!.. got the remedy for ur ICON problem,
on the resource tab..right click on the "IDR_MAINFRAME" icon.. see its property,
its just accessing the ICON from /res/myapp.ico.. ("resource directory")..
So go to your project folder,
open the "res" folder,
Replace the "default" MFC icon there with your Colorful ICON 
then Bulid your project,
now no problem which mode u select to view your folder, the icon'd be the same..
try and reply..
V
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No man still the same problem.
I think by defult the MFC draws the small icon stored in the registry.
Thx for trying though
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No, it doesn't. As mentioned above the same IDR_MAINFRAME icon in your resource contains both the large and small icons. To switch between them in the resource editor:
Open the icon to edit
From the Menu highlight Image/Current Icon Type. An additional menu should open showing you all of the different images for this one icon resource. Click on the selection you wish to edit.
If this is a new MFC project using VC++.Net, you may icons for several different sizes and bit widths, e.g. 16x16 16 color, 16x16 256 color, 32x32 16 color, 48x48 true color, etc.
You will need to edit each one individually. You may also choose to just delete the extra ones that you don't need. At the very least keep the 16x16 and 32x32 16 color versions.
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Thx man
It finally worked
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Hi, i am newbie and want to know :
How can i create a Owner Draw Menu
I did it easily with buttons , choosing Owner Draw property in the properties dialog box. But cant do it with menus
thanx 
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Hi guys,
i had posted this question two weeks ago but did not get any useful reply that would help me , so sorry for the repeated post
I am writing a simple application similar to Spy++ Utility , that displays different information about chosen window.
I want to draw that black rectangle(like in Spy++) over windows ,when mouse is over that window. I manage to draw it , but when i move mouse to another window the rectangle stays on the previous window and on the new also.
I used to store previous windows and when the mouse was over new window i was simply sending the Invalidate() function to the previous window.
For some strange reasons this worked on 95% of the windows , but there were some areas where the rectangle stayed partialy.
Can anyone suggest me any another way of achieving this??
Best Regards
"Success is the ability of going from one failure to another with no loss of enthusiasm" - W.Churchill
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why don't you knock up a quick app that logs all messages it gets, then use Spy++ on that app, and see what messages spy++ is using to force redraw. Then do that in your app.
out of interest, what will your app do that spy++ doesn't?
using System.Beer;
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Jon Hulatt wrote:
why don't you knock up a quick app that logs all messages it gets, then use Spy++ on that app, and see what messages spy++ is using to force redraw. Then do that in your app.
I haven thought about that i'll try that thanks, but i doubt it uses the same technique as Lim Bio Liong in his article[^], Lim does not redraw the window , he uses Brushes , but i could not implement this in MFC.
So i thought that Invalidate() would help and it does , but as i see i have problems when i move the cursor from a parent window to its child,that's the case when the rectangle partially stays on the parent . But when i move the cursor between Child windows(ex : from button to button,..) it works
Jon Hulatt wrote:
out of interest, what will your app do that spy++ doesn't?
Actually nothing, so far. I decided to do it just for interest
"Success is the ability of going from one failure to another with no loss of enthusiasm" - W.Churchill
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Some tools that draw selection rectangles over other windows have the same problem as yours, and I am seeing this with the ZoomIn enhancement I have been working on.
Typically, they invalidate the entire screen, which causes every piece of every window to redraw.
You might want to see what Jospeh Newcomer has done in his new ZoomIn tool he posted recently to CodeProject.
http://www.codeproject.com/tools/betterzoomin.asp[^]
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I currently developing a program and it is workable, but somehow when i turn on the program for a long time(15 minutes depends on how big the computer memory is) then it will hang. I check out that when i add a component which is inside my program, for example a bitmap file into my program. The computer memory starts to increase rapidly everytime i add a component. I been using meta files to store this added components but i have no idea how to remove the metafiles that is added, can anyone here help me. I'll be really grateful
From: Guibert 
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Same problem i faced yesterday and fixed it.
In my case i was creating a DISPLAY DC and one Compatible DC and one Bitmap memory through CreateDIBSection API call.
hdc = CreateDC("DISPLAY",NULL,NULL,NULL);
Bitmap = CreateDIBSection(hdc, pBMI, DIB_RGB_COLORS, (void**)&m_pVideoBits, 0, 0);
HDC hSrcDC = CreateCompatibleDC(hdc);
SelectObject(hSrcDC, m_hViewfinderBitmap);
while Deleting the Bitmap and DC you should follow the following way
DeleteDC(hSrcDC);
DeleteObject(Bitmap);
DeleteDC(hdc);
If your code also have some this kind of thing then please take care that, you should not clean a bitmap untill it is attached to the DC
Hope i could help you some way.
Regards
Anil Kumar
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Can any body tell me why structure alignment is necessary in C/C++ and what it may cause?
Anil Kumar
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Hi
Applications should generally align structure members at addresses that are "natural" for the data type and the processor involved. For example, a 4-byte data member should have an address that is a multiple of four.
This principle is especially important when you write code for porting to multiple processors. A misaligned 4-byte data member, which is on an address that is not a multiple of four, causes a performance penalty with an 80386 processor and a hardware exception with a MIPS® RISC processor. In the latter case, although the system handles the exception, the performance penalty is significantly greater.
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Or maybe this can help too:
All modern CPUs expect that fundamental types like ints, longs and floats will be stored in memory at addresses that are multiples of their length.
CPUs are optimized for accessing memory aligned in this way.
Some CPUs:
allow unaligned access but at a performance penalty;
trap unaligned accesses to the operating system where they can either be ignored, simulated or reported as errors;
use unaligned addresses as a means of doing special operations during the load or store.
When a C compiler processes a structure declaration, it can:
add extra bytes between the fields to ensure that all fields requiring alignment are properly aligned;
ensure that instances of the structure as a whole are properly aligned. Malloc always returns memory pointers that are aligned for the strictest, fundamental machine type.
The specifications for C/C++ state that the existence and nature of these padding bytes are implementation defined. This means that each CPU/OS/Compiler combination is free to use whatever alignment and padding rules are best for their purposes. Programmers however are not supposed to assume that specific padding and alignment rules will be followed. There are no controls defined within the language for indicating special handling of alignment and padding although many compilers like gcc have non-standard extensions to permit this.
Summary
Structure Alignment
Structure alignment may be defined as the choice of rules which determine when and where padding is inserted together with the optimizations which the compiler is able to effect in generated code.
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But as per my understanding the structure members are stored in the contigous memory locations for example
struct temp
{
char a,
int b,
float c,
};
if i declare temp *structPtr = 0x00000000 (Address of element a)
then what should be the address of element b if it is 0x00000002 then one byte is waisted.
According to you b should have address of multiple of 4.
So i can say that there is a trade of CPU performance vs Memory usage
Am i right please guide me.
Regards
Anil Kumar
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