Friday, September 24, 2010

The bitmap on the Symbian operating



Symbian operating a bit in the bitmap and the Windows SDK similar to a Context with Device, following some comments:

Bitmap graphics context
By the CBitmapContext class provides a Graphics context (CGraphicsContext) bitmap graphics implementation. It provides the following features:
1, clear and copy rectangular area;
2 bitmap block transfer (block transfer);
3, set the pen color and gray;
4, set the shadow mode;
5, the GC settings reset to default values

Window Server Client-side API provides an implementation: CWindowGc, which is mainly used for screen graphics, and the other to achieve a CFbsBitGc, which is mainly used for in-memory bitmap drawing, each of these are useful:)

See Figure




Bitmap graphics device
By the CBitmapDevice class provides a Graphics device (CGraphicsDevice) bitmap graphics to achieve.

Here Window Server Client-side API provides an implementation, CWsScreenDevie, used for screen rendering. Another realization is CFbsBitmapDevice, used to draw an in-memory bitmap, there is a CFbsScreenDevice, is primarily used (seldom used) to directly access the screen, skip the window server intermediary.

See Figure



Maintain the operation of the bitmap in CFbsBitmap, it can represent a font and bitmap server is managed by a bitmap. It provides digital map generation, loading and storage. There is also a TBitmapUtil related class, this class provides
Many functions to the user to manipulate the bitmap bits (!), Oh, is not very practical ah.

Bitmap is generally based on their size is stored in two different heap, large bitmap (there is a limit value for 4KB) storage location and small size of the bitmap is different, store large bitmap heap can automatic defragmentation to optimize their space:)

Each bitmap has a two-inch scale units, one twip size, this is the real world of WYSIWYG sizes, and one pixel size.

If you want to be more direct action bit map, you can use CFbsBitmap:: DataAddress (), it can get a bitmap loaded into memory address, inferior race to manipulate bitmap bit, I am afraid that is the fastest way, but still very trouble, huh, huh, attention, such as RGB to operate here, to note that the color difference, the general concept is 0xXXXXXX, with 6 bits to represent the RGB values, which became the 24-bit color, but the 3650/7650 is 4094 color, or 12bit color (4KColor), so operation, we have to switch between the two, we can use TRgb:: Color4K conversion, attention, and its parameters are TInt value, do not write * Address style, or in the simulation device on the pass, the phone will report Kern-Exec 3 errors, and a headache:)






Recommended links:



Cottage in China



VOB to Zune



DLL gray dove release type articles of the back door of the signature changes



after the fall of THE open source mysql database



Zhongguancun business will have been cleaned up and returned rectifying Zanji



Watch cool MECHANICAL picture production process



AVI to 3GP



Picked Font Tools



Is Out Of Date, ADSL Anecdotes



evaluation Audio Video Tools



The official version of Opera 10 September 1 showing the speed will increase 40%



Good Password MANAGERS



DAT to 3GP



BenQ compete in, with a hope that the road



News about Graphic CAD



Thursday, September 16, 2010

Xi Guohua, vice minister of MII: China's 3G licenses around four factors


Yesterday conducted the work of China Telecom Group meeting in 2007, despite the Ministry of Information Industry Xi Guohua, Vice Minister again stressed the "3G licenses being issued when the study, no conclusion." But he has further pointed out that China 3G licenses payment depends on four factors:

First, products, technology, business maturity.

And Xi pointed out that TD-SCDMA has been basically mature.

Second, the competitive landscape of the optimization. Xi Guohua clear that China's current telecom market is facing a serious imbalance in the competitive landscape. China Mobile, a single large, thriving new business telecom operation this year, revenues and profits in China Mobile accounted for 70% -80%. In contrast with China Mobile is growing more difficult for fixed network operators.

"We have recognized that mobile business license issued less. China Mobile and China Unicom unequal strength, not form effective competition." Xi Guohua said yesterday, Ministry of Information Industry is stepping up research, how to adjust regulatory policies, such as issuing 3G mobile licenses, the implementation of all business operations to reverse this pattern, it is necessary to prevent duplication, but also to compete effectively.

The third is the intellectual property rights. Xi Guohua stressed, 3G-standard intellectual property fees must be reasonable, too easy to create a monopoly, would lead to the results of human civilization will hinder the application.

Fourth is the need to fully support TD-SCDMA. Xi Guohua said the Ministry of Information Industry is doing a recent evaluation report, the basic view that "TD-SCDMA basic conditions for the commercialization": The testing results show the core TD-SCDMA has independent intellectual property rights standards and technology, is feasible in principle, can set a large network, although there are still some problems, but the construction and application in the future can be resolved gradually. For the follow-up TD-SCDMA development, Xi said, "The industry is developing technology evolution roadmap."






Recommended links:



WMV mpeg converter



IP and MAC binding of crack



About Groovy And Grails



youtube mkv



Matting, Photoshop master of the Road, 2



CATALOGS Screen Capture



Art - SCREEN Savers Report



Dell second quarter profit by 28 percent cited dissatisfaction with the price war has hurt revenue



Evaluate XML Or CSS Tools



"Chino conflict" Comment



e-cology in the Pan Micro Series 29



Chemistry TEACHERS and multimedia courseware



windows MEDIA player psp



Matroska format