Template issue with std::remove_pointer_t
Hi Guru I am updating my post, so my codes can be better understood; This codes is meant to demonstrate the problem i am facing, although it doesn't do anything much. I run VC++ 2019 with latest...
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Can I export Com function?
Hi, I have created a project with some classes and frequently used functions. Can I export these functions in my custom class to create a lib? I did it like this but got an error Code: class...
View ArticleHow to get COM function return value
I am using COM function in my code,I have only tli file of the the com project so how will I be able to get the return value of the COM function as in tli file it's not present,where can I see the...
View ArticleDoes #define change things that come before it?
Does #define change things that came before it? I'd always assumed it did because it's a preprocessor directive but I just found this code in a header file:- Code: typedef struct _stat GStructLarge;...
View ArticleHow to initialize variant?
Hi, I'm having a hard time initializing the variable as follows: using mytype=std::variant<int, double, int>; I tried this but it doesn't work. mytype k{1,1.124.2}; I've seen this post, but it...
View Article[RESOLVED] How to initialize variant?
Hi, I'm having a hard time initializing the variable as follows: using mytype=std::variant<int, double, int>; I tried this but it doesn't work. mytype k{1,1.124,2}; I've seen this post, but it...
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Problem with vector?
Hi, This problem took me a long time to fix but it didn't work .. I have a functions like this: Code: struct ST1 //define global outsize class; { ///...int,bool,.....
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[RESOLVED] Problem with vector?
Hi, This problem took me a long time to fix but it didn't work .. I have a functions like this: Code: struct ST1 //define global outsize class; { ///...int,bool,.....
View Article[RESOLVED] How to set excel column width?
I have searched and used some formula: ClientToScreen,.. to find CPoint. My result: Code: CPoint cp1 ;x-y (314;448) CPoint cp2 ;x-y (802;448) from this, Can I draw the CPoint on the screen to check...
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How to kill Excel process?
Hi, I'm doing an action in first debug like this: 1, Create excel instance. 2, During debugging, turn it off suddenly. In some case, this processes still run in background, so when i use getobject code...
View ArticleHow to avoid Titlebar flicker?
Hi, In the the my code,from MFC form, I call the ::Setfocus(hwnd) function to focus another windows application only once. then i setfocus back to my MFC form. my code like this: Code: HWND...
View ArticleexpandToFit & centering page content on printed page XPS API
Hello, The following shows the calculation and application of shrink to fit without centering the page content on the printed page. I use a 3rd party library to create the matrix which is then applied...
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How to get worksheet name?
Hi, I'm having trouble locating the worksheet name , My code uses as following: Code: IDispatch* xlSheet; //<--get xlSheet ok VARIANT result4; VariantInit(&result4);...
View ArticleWhy Creatfont not working?
Hi, I'm using the font Calibri, I need to calculated fontwidth of CString L"testtextwidth" from the fontsize 11 or 12(in point) equivalent 14.5 and 16 in pixel. I used the Createfont function as...
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How to expand dropdownlist?
Hi, During using owndraw with has string property, my combobox cannot expand. How can I fix this? Thanks you! Attached Images
View ArticleA CMFCDropDownToolBar Question
I created a CMFCDropDownToolBar embedded in a CMFCToolBar VIA dummy resource button as explained in CMFCDropDownToolBar Class microsoft document,everything works great, but what I want to do is create...
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Where do a project's filters get saved ?
Here's a screenshot showing a typical VC project:- Notice that the various .cpp files are arranged into folders (called 'Filters') with each of them containing one or more .cpp files- BUT.... If I open...
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[RESOLVED] Where do a project's filters get saved ?
Here's a screenshot showing a typical VC project:- Notice that the various .cpp files are arranged into folders (called 'Filters') with each of them containing one or more .cpp files- BUT.... If I open...
View ArticleCancelling _declspec(dllexport)
Just for simplification... Code: class _declspec(dllexport) Whatever { public: int some_func1 (); int some_func2 (); int some_func3 (); [...] int some_func20 (); private: int...
View ArticleStopping unnecessary style corrections
A project I'm involved in has a style of inserting spaces for better visibility - like this:- Code: int SomeFunc ( int whatever ); but if I make any change to an existing line, VS2019 has an annoying...
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