gdkDrawRgbImage
Draws an RGB image in the drawable. This is the core GdkRGB function, and likely the only one you will need to use.
gdkDrawRgbImage(object, gc, x, y, width, height, dith, rgb.buf,
rowstride) |
The |
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The graphics context (all GDK drawing operations require one; its contents are ignored). |
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The x coordinate of the top-left corner in the drawable. |
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The y coordinate of the top-left corner in the drawable. |
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The width of the rectangle to be drawn. |
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The height of the rectangle to be drawn. |
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A |
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The pixel data, represented as packed 24-bit data. |
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The number of bytes from the start of one row in |
The rowstride parameter allows for lines to be aligned more flexibly.
For example, lines may be allocated to begin on 32-bit boundaries,
even if the width of the rectangle is odd. Rowstride is also useful
when drawing a subrectangle of a larger image in memory. Finally, to
replicate the same line a number of times, the trick of setting
rowstride to 0 is allowed.
In general, for 0 <= i < width and 0 <= j < height,
the pixel (x + i, y + j) is colored with red value rgb.buf[j *
rowstride + i * 3], green value rgb.buf[j * rowstride + i * 3 +
1], and blue value rgb.buf[j * rowstride + i * 3 + 2].
Derived by RGtkGen from GTK+ documentation
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