41 lines
980 B
Go
41 lines
980 B
Go
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// Example xinerama shows how to query the geometry of all active heads.
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package main
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import (
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"fmt"
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"log"
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"github.com/jezek/xgb"
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"github.com/jezek/xgb/xinerama"
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)
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func main() {
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X, err := xgb.NewConn()
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if err != nil {
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log.Fatal(err)
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}
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// Initialize the Xinerama extension.
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// The appropriate 'Init' function must be run for *every*
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// extension before any of its requests can be used.
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err = xinerama.Init(X)
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if err != nil {
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log.Fatal(err)
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}
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// Issue a request to get the screen information.
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reply, err := xinerama.QueryScreens(X).Reply()
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if err != nil {
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log.Fatal(err)
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}
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// reply.Number is the number of active heads, while reply.ScreenInfo
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// is a slice of XineramaScreenInfo containing the rectangle geometry
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// of each head.
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fmt.Printf("Number of heads: %d\n", reply.Number)
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for i, screen := range reply.ScreenInfo {
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fmt.Printf("%d :: X: %d, Y: %d, Width: %d, Height: %d\n",
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i, screen.XOrg, screen.YOrg, screen.Width, screen.Height)
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}
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}
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