A graphic device interface resource management method and device

Abstract

The invention discloses a method for managing a graphics device interface (GDI) resource. The method comprises the following steps that when an access requestor is to access to a GDI resource target, a creation request is transmitted to a resource pool; the resource pool determines whether the GDI resource target is stored in the resource pool or not, if not, the GDI resource target and a handle of the GDI resource target are created and stored and the handle of the GDI resource target is returned, and otherwise, the handle of the GDI resource target is returned; and the access requestor uses the handle returned by the resource pool to access to the GDI resource target. By the method and a device, the utilization rate of the GDI resource can be improved, the system expenditure is reduced, and the occupied memory of the system is reduced.

Description

technical field [0001] The present invention relates to a resource management technology, in particular to a graphic device interface (GDI, Graphic Device Interface) resource management method and device. Background technique [0002] GDI resources are resources managed by the system kernel program "Gdiexe", which are used to store graphic object information such as brushes, brushes, fonts, and palettes. It can be considered that GDI resources are composed of a series of GDI resource objects. [0003] In the prior art, when a system process needs to access a GDI resource object, it will call global functions such as ::CreateFont, ::CreateSolidBrush or ::CreatePen, and these global functions will create the GDI resource object and return the GDI handle. The GDI handle can be used to access the GDI resource object; at a later time, if another GDI resource object is to be accessed, the above process is repeated. [0004] However, the above method has certain problems in pract...

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Problems solved by technology

[0004] However, the above method has certain problems in practical application, such as: if the GDI resource objects to be accessed twice before and after are the same, the same refers to the same type and attribute, where the type refers to brushes, brushes, fonts, etc. , the attribute refers to the color of the brush, the style, size, and color of the brush, the type, size, thickness, italic attribute, and whether there is an underline, etc. of the font; then according to the existing method, even if the same GDI resource object has been created before, the following It will still be recreated once, that is, the same GDI resource object is created repeatedly, which will lead to problems such as reduced GDI resource utilization, increased system overhead, and increased system memory usage.

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