BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Odd-shaped form          BorlandTalk.com Forum Index -> C++ Builder (Graphics) View previous topic :: View next topic   Author Message David Erbas-White Guest Posted: Fri Dec 16, 2005 1:33 am    Post subject: Odd-shaped form I'm using BCB5, but can upgrade if need be (depending on the answer to my question). I have not ever done anything with any 'odd-shaped' forms, such as an ellipse or a graphic. How is this done, and are there any special VCL components for doing this? I have a request from a client to 'jazz up' the main form of his program, with a graphics designer providing the actual drawing. Any comments appreciated. David Erbas-White Back to top Remy Lebeau (TeamB) Guest Posted: Fri Dec 16, 2005 3:11 am    Post subject: Re: Odd-shaped form "David Erbas-White" <derbas (AT) arachneering (DOT) com> wrote Quote: I have not ever done anything with any 'odd-shaped' forms, such as an ellipse or a graphic. How is this done Use a region. Look in the Win32 API at the various Create...Rgn() functions, the ExtCreateRegion() function, and the SetWindowRgn() function. Alternatively, only on Win2K and later OSs, you can use layered attributes to specify a transparent color for the form (if you upgrade to BCB6, TForm has new TransparentColor and TransparentColorValue properties for that). Look at the SetWindowLayeredAttributes() function, and the WS_EX_LAYERED window style, in the Win32 API. Quote: I have a request from a client to 'jazz up' the main form of his program, with a graphics designer providing the actual drawing. If the graphics are stored as bitmaps, then you can create regions from them: Converting a bitmap to a region http://www.codeguru.com/Cpp/G-M/bitmap/usingregions/article.php/c1751 Gambit Back to top Boian Mitov Guest Posted: Fri Dec 16, 2005 3:18 am    Post subject: Re: Odd-shaped form Hi David, I have a free open source component that does that. Go to www.mitov.com and then to the Free Downloads. It is written in BCB and you can look at the source. If you don't like it, you can use the source as reference to how to implement region. Cheers, Boian David Erbas-White wrote: Quote: I'm using BCB5, but can upgrade if need be (depending on the answer to my question). I have not ever done anything with any 'odd-shaped' forms, such as an ellipse or a graphic. How is this done, and are there any special VCL components for doing this? I have a request from a client to 'jazz up' the main form of his program, with a graphics designer providing the actual drawing. Any comments appreciated. David Erbas-White Back to top David Erbas-White Guest Posted: Fri Dec 16, 2005 4:49 am    Post subject: Re: Odd-shaped form Thanks to both of you, I'll look at both references! David Erbas-White Back to top David Erbas-White Guest Posted: Fri Dec 16, 2005 6:26 am    Post subject: Re: Odd-shaped form Boian, The demounit.h file in your zip file for the component is corrupted -- it looks as though it's been replaced by a copy of the DFM file. If you have an opportunity to find the original at some point, I'd appreciate it. David Erbas-White Back to top Jim Dodd Guest Posted: Fri Dec 16, 2005 6:10 pm    Post subject: Re: Odd-shaped form David Erbas-White wrote: Quote: Boian, The demounit.h file in your zip file for the component is corrupted -- it looks as though it's been replaced by a copy of the DFM file. If you have an opportunity to find the original at some point, I'd appreciate it. David Erbas-White If Boian doesn't get back to you soon, I have an old version of his component and can send you a copy of demounit.h dated Apr. 14, 1999 if you'd like it. Regards, Jim Dodd Onset Computer Corp. Back to top David Erbas-White Guest Posted: Fri Dec 16, 2005 7:09 pm    Post subject: Re: Odd-shaped form Jim, That would be great, as I'm leaving on a trip tomorrow and would like to be able to take it with me. My email address above is valid. David Erbas-White Jim Dodd wrote: Quote: David Erbas-White wrote: Boian, The demounit.h file in your zip file for the component is corrupted -- it looks as though it's been replaced by a copy of the DFM file. If you have an opportunity to find the original at some point, I'd appreciate it. David Erbas-White If Boian doesn't get back to you soon, I have an old version of his component and can send you a copy of demounit.h dated Apr. 14, 1999 if you'd like it. Regards, Jim Dodd Onset Computer Corp. Back to top Jim Dodd Guest Posted: Fri Dec 16, 2005 10:08 pm    Post subject: Re: Odd-shaped form Boian Mitov wrote: Quote: Hi David, I have a free open source component that does that. Go to www.mitov.com and then to the Free Downloads. It is written in BCB and you can look at the source. If you don't like it, you can use the source as reference to how to implement region. Cheers, Boian Boian, David later mentions how one of the files in the demo project is corrupted in the package on your Website. I also found that the file you uploaded to Torry's site is also corrupted in the same way. It's the DemoUnit.h file. Regards, Jim Dodd Onset Computer Corp. Back to top Boian Mitov Guest Posted: Fri Dec 16, 2005 11:15 pm    Post subject: Re: Odd-shaped form Hi Jim, Thank you folks! I will fix it. It is the demo header file, and you can use the component without it, but I will get it fixed. Cheers, Boian Jim Dodd wrote: Quote: Boian Mitov wrote: Hi David, I have a free open source component that does that. Go to www.mitov.com and then to the Free Downloads. It is written in BCB and you can look at the source. If you don't like it, you can use the source as reference to how to implement region. Cheers, Boian Boian, David later mentions how one of the files in the demo project is corrupted in the package on your Website. I also found that the file you uploaded to Torry's site is also corrupted in the same way. It's the DemoUnit.h file. Regards, Jim Dodd Onset Computer Corp. Back to top Boian Mitov Guest Posted: Fri Dec 16, 2005 11:45 pm    Post subject: Re: Odd-shaped form Hi David, I had to recreate the file from scratch . Here it is: //--------------------------------------------------------------------------- #ifndef DemoUnitH #define DemoUnitH //--------------------------------------------------------------------------- #include <Classes.hpp> #include <Controls.hpp> #include <StdCtrls.hpp> #include <Forms.hpp> #include "BMShapedForm.h" #include <Buttons.hpp> #include <ExtCtrls.hpp> #include <Graphics.hpp> //--------------------------------------------------------------------------- class TForm1 : public TForm { __published: // IDE-managed Components TBMShapedForm *BMShapedForm1; TBitBtn *BitBtn1; TBitBtn *BitBtn2; void __fastcall BitBtn1Click(TObject *Sender); void __fastcall BitBtn2Click(TObject *Sender); private: // User declarations bool Stretched; public: // User declarations __fastcall TForm1(TComponent* Owner); }; //--------------------------------------------------------------------------- extern PACKAGE TForm1 *Form1; //--------------------------------------------------------------------------- #endif Cheers, Boian David Erbas-White wrote: Quote: Boian, The demounit.h file in your zip file for the component is corrupted -- it looks as though it's been replaced by a copy of the DFM file. If you have an opportunity to find the original at some point, I'd appreciate it. David Erbas-White Back to top David Erbas-White Guest Posted: Sat Dec 17, 2005 12:11 am    Post subject: Re: Odd-shaped form Thanks to both you and Jim for your prompt response! David Erbas-White Boian Mitov wrote: Quote: Hi David, I had to recreate the file from scratch . Here it is: //--------------------------------------------------------------------------- #ifndef DemoUnitH #define DemoUnitH //--------------------------------------------------------------------------- #include #include #include #include #include "BMShapedForm.h" #include #include #include //--------------------------------------------------------------------------- class TForm1 : public TForm { __published: // IDE-managed Components TBMShapedForm *BMShapedForm1; TBitBtn *BitBtn1; TBitBtn *BitBtn2; void __fastcall BitBtn1Click(TObject *Sender); void __fastcall BitBtn2Click(TObject *Sender); private: // User declarations bool Stretched; public: // User declarations __fastcall TForm1(TComponent* Owner); }; //--------------------------------------------------------------------------- extern PACKAGE TForm1 *Form1; //--------------------------------------------------------------------------- #endif Cheers, Boian David Erbas-White wrote: Boian, The demounit.h file in your zip file for the component is corrupted -- it looks as though it's been replaced by a copy of the DFM file. If you have an opportunity to find the original at some point, I'd appreciate it. 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