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I have made a cursor with cursor editor and the device is 32*32,256 colors. but it can't use. why?
thanks.
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What is the easiest way to convert a HBITMAP to JPEG file in C/C++?
Thanks,
Regards,
Xavier
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I don't know why that didn't post - I'll try again. Use GDI+, read the Doodle article on this site.
Jonathon
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Hi everyone! This is my first foray into 'The Code Project'.
I learned windows programming through MFC and I'm just now going back and trying to relearn it without MFC (so that presumably when I return to using it I will have a much higher appreciation.) Anyway, I have a simple problem and I would be grateful for help with it.
I made the default MSVC 6.0 SDK 'Hello World' project. Then I put some controls on it using CreateWindow("EDIT"...) and "STATIC" and "BUTTON". Now I want a window that simply sends a message to the parent giving client x,y coordinates when it is clicked on. The way I used to do this was just to capture the clicks in the main window and do the calculations to see whether the click was in any of the child windows. I tried subclassing (I just learned what subclassing is) a "STATIC" window to handle the WM_LBUTTONDOWN, but it acts like it's not even there . I know the subclassing worked though because it handles WM_PAINT fine.
Thank you!
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When you create the static control add the SS_NOTIFY style. This will make the control send the STN_CLICKED notification message when the window gets clicked on.
-Ben
---------
On the topic of code with no error handling -- It's not poor coding, it's "optimistic" 
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I saw that option while I was poking around (though it doesn't help that SS_NOTIFY isn't in the MSDN help index  ) and I dismissed it after looking at the scant offerings of STN_* (I think they were 'click' 'dblclick' 'enable' and 'disable' or something) since I needed more information (like *where* they clicked and which button) which is why I decided to learn about subclassing.
Anyway, I tried the SS_NOTIFY style just for the hell of it, and lo and behold all of the subclassing stuff I was trying to do started working! I guess the subclassing doesn't work unless you have SS_NOTIFY on, though I can't find that in the help anywhere.
Thank you, Benner! 
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Is there any other build-in function that can receive the window message or message generated by driver?
I just know that WindowProc() is one of the function.....
Thanks
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using the windows hook.
SetWindowHookEx(...),you can find more detail from Msdn.
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I an trying to pass a CArray object as a parameter to a function.
code is somewhat like this:
"
void SetPoints(CArray"<"CPoint, CPoint&">" points);
anotherfunction{
CArray"<"CPoint, CPoint&">" myArray;
SetPoints(myArray);
....
}
I keep getting compilation errors saying that it cannot convert parameter 1 of SetArray from
CArray<cpoint, cpoint&=""> to CArray<cpoint, cpoint&="">
"
does not make sense to me!!
Please respond by e-mail if you know what's ahappend..
really need it badly!!
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void SetPoints(CMyArrayType &array)
{
...
}
you need to pass the array as a reference
------------------------------
Smaller Animals Software, Inc.
http://www.smalleranimals.com
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#include '<'afxtempl.h'>'
Cheers!!!!
Carlos Antollini.
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#include '<'afxtempl.h'>'
Cheers!!!!
Carlos Antollini.
Carlos Antollini.
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I an trying to pass a CArray object as a parameter to a function.
code is somewhat like this:
"
void SetPoints(CArray<cpoint, cpoint&=""> points);
anotherfunction{
CArray<cpoint, cpoint&=""> myArray;
SetPoints(myArray);
....
}
I keep getting compilation errors saying that it cannot convert parameter 1 of SetArray from
CArray<cpoint, cpoint&=""> to CArray<cpoint, cpoint&="">
"
does not make sense to me!!
Please respond by e-mail if you know what's ahappend..
really need it badly!!
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|
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I an trying to pass a CArray object as a parameter to a function.
code is somewhat like this:
void SetPoints(CArray<cpoint, cpoint&=""> points);
anotherfunction{
CArray<cpoint, cpoint&=""> myArray;
SetPoints(myArray);
....
}
I keep getting compilation errors saying that it cannot convert parameter 1 of SetArray from
CArray<cpoint, cpoint&=""> to CArray<cpoint, cpoint&="">
does not make sense to me!!
Please respond by e-mail if you know what's ahappend..
really need it badly!!
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You're trying to pass CArray by value. This fails, because CArray has no copy constructor defined. To solve the problem, pass array by reference:
void SetPoints(CArray<CPoint, CPoint&> & points);
Tomasz Sowinski -- http://www.shooltz.com.pl
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I don't know if it will help you, but...
I have never passed a CArray object to a function, but I have returned one from it.
//prototype.
CArray <strctpaquetreldocreceptor,strctpaquetreldocreceptor&> *GetArrayPaquetRelDocReceptors();
//return of the CArray (inside the f(x))
CArray <ctamcontrolcenterapp::strctpaquetreldocreceptor,ctamcontrolcenterapp::strctpaquetreldocreceptor&> *CTAMControlCenterApp::GetArrayPaquetRelDocReceptors()
{
return &m_ArrayPaquetRelDocReceptor;
}
I remember that without the #include <afxtempl.h> inside the stdafx.h it didn't work...
This is the same but in the reverse order, I expect it helps you...
I'm a novice speaking english, I'm sure you will have noticed it... I beg your pardon...
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Hi all,
I have trouble refreshing one static text after having set it to WM_VISIBLE off
if I minimize & maximise again the static is gone but how can I send order to refresh
the static text directly.
I tried already invalidatrect drawwindows() and some other solutions, nothing work.
I suppose that I should invalidat the Cstatic object (in fact the excellent CLabel class
derived from CStatic) then send a WM_PAINT to the main but I don't know how to exactly
do this following the rules to get clean code. (I'm newbies at MFC)
Thanks for any help
Dany
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Using WS_VISIBLE is similar to using the following function:
ShowWindow(hwnd, SW_HIDE); //This hides the window!
To re-show or make visible:
ShowWindow(hwnd, SW_SHOW);
Mh2! 
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don't set id of the static control to id_static,
it must unique
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Many thanks, just tried it work fine...
I dealed with several API and language and was always suspicious  about MFC but it's
incredible what we can do in no time 
I don't want to abuse but one more question:
Is there a ways to avoid immediate refresh when setting SW_SHOW cause I have several
static (another name of course  ) to show and even if it's fast we can see that
they come up one by one.
something like :
DisableWindowsUpdate();
..SW_SHOW
..SW_SHOW
...
EnableWindowsUpdate();
Again thanks it will be my last question (for this thread of course )
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After looking in several places for example code and not finding any, this is the result: (please ignore any extraneous quotation marks)
#pragma pack(1)
typedef struct {
int A;
int B;
} myType1;
typedef struct {
char A;
char B;
} myType2;
#pragma pack()
template "<"typename T">"
void copydata(T* dst, char* src)
{
char* ptr = (char*)dst;
for (int i=0; i < sizeof(T); i++) {
*ptr = *src;
ptr++;
src++;
}
}
I know it isn't very type-safe. Does anyone have suggestions for improving this? Thanx
>>>-----> MikeO
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I'd use memcpy.
> I know it isn't very type-safe.
It's not only type-unsafe. It's totally unsafe.
Tomasz Sowinski -- http://www.shooltz.com.pl
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It was written as a non-class template excercise. The example is trivial, but the real-world structures share some common elements that will be used in future templates. Since sizeof(T) is used to limit the amount of data copied, what is unsafe about the template?
>>>-----> MikeO
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> real-world structures share some common elements that will
> be used in future templates. Since sizeof(T) is used to limit
> the amount of data copied, what is unsafe about the template?
You're using a C++, right? (last time I've checked C had no templates). Don't expect bitwise copy to work correctly with C++ objects. Moving bits around will work only if your structs are simple aggregates of primitive types like int, char or double.
Tomasz Sowinski -- http://www.shooltz.com.pl
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> Moving bits around will work only if your structs are
> simple aggregates of primitive types like int, char or double
In this instance the structs are simple aggregates, but your point is well taken.
Having programmed in C for the past several years it is sometimes difficult adjusting to C++.
Thanx for your input.
>>>-----> MikeO
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